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Electro-Voice Precision Series Service Manual
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Electro-Voice Precision Series Service Manual

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SERVICE MANUAL
P3000
PRECISION SERIES

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Summary of Contents for Electro-Voice Precision Series

  • Page 1 All manuals and user guides at all-guides.com SERVICE MANUAL P3000 PRECISION SERIES...

  • Page 2: Important Safety Instructions

    All manuals and user guides at all-guides.com IMPORTANT SAFETY INSTRUCTIONS The lightning flash with arrowhead symbol, within an equi- lateral triangle is intended to alert the user to the presence of uninsulated “dangerous voltage” within the product’s enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons.

  • Page 3: Technical Specifications

    Frequency Response 10 Hz - 30 kHz / Power Consumption 1650 VA overload due to power stage clipping. The 1/8 rated output power 4 Ohm PRECISION SERIES power amplifiers fea- Max. Output Level 91V / RMS ture excellent transmission properties. The Dimensions (WxHxD) 483x132.5 x 426mm...

  • Page 4: Service Information

    Tel.: ++49 (0)9421/7060 servicing information contained within this panel accommodates the dB-calibrated input Fax: ++94(0)9421/706265 document is only for use by Electro-Voice Gain controls which are designed as espe- Authorized warranty repair stations and qua- cially precise and safe-to-operate detented MARK IV AUDIO (Europe) AG lified service personnel.

  • Page 5: Block Diagram

    All manuals and user guides at all-guides.com BLOCK DIAGRAM DIMENSIONS...

  • Page 6: Power Supply

    All manuals and user guides at all-guides.com SPECIFICATIONS: P3000 entire unit Measuring Standard IEC 268 part 3IHF-A 0 dBu = 775 mV (RMS) POWER SUPPLY 1. voltage supply 2. nominal supply voltage, depending on the model: 120V/230V/240V 3. nominal mains frequency: 50 - 60 Hz 4.
  • Page 7 All manuals and user guides at all-guides.com FREQUENCY RESPONSE • -3 dB level drop, referenced to the level at the standard frequency of 1 kHz • the power amplifier's border frequencies are at 13 Hz and 40 kHz respectively, referenced to -1 dB Amplification frequency response Input Output...
  • Page 8 All manuals and user guides at all-guides.com EXTENSIONS optionally available 2 x input transformer NRS 90176 MEASURED SPECIFICATIONS: P3000 entire unit Measurement conditions, unless differently specified: ∆X = ±1.5 dB • tolerance of measured values: • measuring frequency: f = 1 kHz •...
  • Page 9 All manuals and user guides at all-guides.com Adjusting the idling current has to be performed at normal room temperature. In case the power amplifier had previously been operated, it has to be given several hours to cool off. 4.2. FLOATING - SYMMETRY Immediately after setting the idle current, a symmetry check of the floating voltage has to be performed.
  • Page 10 All manuals and user guides at all-guides.com clipping. The distortion rate of the limited signal is at THD = 1 % … 2 %. Increasing the input signal up to a value of +21 dBu should not result in remarkably higher clipping. 5.2.2.
  • Page 11 All manuals and user guides at all-guides.com (100 ms ON, 900 ms OFF), applied to each channel at a time. The protection circuit has to react. The power amplifier tries to re-start continuously while the PROTECT LED blinks with the same frequency. Repeat the test with f = 30 kHz and the limiter set to ON;...
  • Page 12 All manuals and user guides at all-guides.com DIM 100 < 0.009 % < 0.005 % 3.15 kHz, 15 kHz Frequency Response AMPL(dBr) FREQ(Hz) 21 JUN 94 10:06:59 3.0000 -3.000 -6.000 -9.000 -12.00 -15.00 -18.00 -21.00 100k Plot 1: HI/LO-Cut on Plot 2: HI/LO-Cut off 12.
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  • Page 20 All manuals and user guides at all-guides.com Page 1 / 12 Ersatzteilliste - Bill of Materials 170018 P 3000 US 120V POWER-AMP Pos. Nr. Best. Nr. Ref. No. Part No. Bezeichnung Description Zubehör Accessories & packing material 341341 STECKER-SPEAKON 4POL speakon-connector 4-pole 351212 OWNER'S MANUAL P 3000...
  • Page 21 All manuals and user guides at all-guides.com Page 2 / 12 170018 P 3000 US 120V POWER-AMP Pos. Nr. Best. Nr. Ref. No. Part No. Bezeichnung Description CN004 330269 FL.STECKER 6.3/0.8 connector 6.3mm faston CN006 330269 FL.STECKER 6.3/0.8 connector 6.3mm faston CN007 330269 FL.STECKER 6.3/0.8...
  • Page 22 All manuals and user guides at all-guides.com Page 3 / 12 170018 P 3000 US 120V POWER-AMP Pos. Nr. Best. Nr. Ref. No. Part No. Bezeichnung Description Q0015 331657 TRANS MJ 15022 transistor MJ 15022 Q0016 331657 TRANS MJ 15022 transistor MJ 15022 Q0017 331657...
  • Page 23 All manuals and user guides at all-guides.com Page 4 / 12 170018 P 3000 US 120V POWER-AMP Pos. Nr. Best. Nr. Ref. No. Part No. Bezeichnung Description R0005 348632 WI-DR 2X 0.47 OHM 5.00W 5% resistor 2x 0.47 Ohm 5watt R0006 348632 WI-DR 2X 0.47 OHM 5.00W 5%...
  • Page 24 All manuals and user guides at all-guides.com Page 5 / 12 170018 P 3000 US 120V POWER-AMP Pos. Nr. Best. Nr. Ref. No. Part No. Bezeichnung Description CN001 330269 FL.STECKER 6.3/0.8 connector 6.3mm faston CN004 306395 FEDERLEISTE 2,5MM O 7POL connector female 7-pole CN007 344975...
  • Page 25 All manuals and user guides at all-guides.com Page 6 / 12 170018 P 3000 US 120V POWER-AMP Pos. Nr. Best. Nr. Ref. No. Part No. Bezeichnung Description C0110 326675 KO-EL 100.000MF 10V BIP cap bip electr. 100uF/10V C0111 326675 KO-EL 100.000MF 10V BIP cap bip electr.
  • Page 26 All manuals and user guides at all-guides.com Page 7 / 12 170018 P 3000 US 120V POWER-AMP Pos. Nr. Best. Nr. Ref. No. Part No. Bezeichnung Description C0320 301474 KO-EL 22.000MF 16V BIP cap bip electr. 22uF/16V C0600 301472 KO-EL 10.000MF 63V cap electrolytic 10uF/63V C0603...
  • Page 27 All manuals and user guides at all-guides.com Page 8 / 12 170018 P 3000 US 120V POWER-AMP Pos. Nr. Best. Nr. Ref. No. Part No. Bezeichnung Description D0707 301254 DIODE 1N 4148 AXIAL diode 1N 4148 D0708 301254 DIODE 1N 4148 AXIAL diode 1N 4148 D0710...
  • Page 28 All manuals and user guides at all-guides.com Page 9 / 12 170018 P 3000 US 120V POWER-AMP Pos. Nr. Best. Nr. Ref. No. Part No. Bezeichnung Description 00010 338869 TRANS MJE 350 transistor MJE 350 00010 338869 TRANS MJE 350 transistor MJE 350 Q0107 348422...
  • Page 29 All manuals and user guides at all-guides.com Page 10 / 12 170018 P 3000 US 120V POWER-AMP Pos. Nr. Best. Nr. Ref. No. Part No. Bezeichnung Description 00010 338868 TRANS MJE 340 transistor MJE 340 00010 338868 TRANS MJE 340 transistor MJE 340 Q0228 348421...
  • Page 30 All manuals and user guides at all-guides.com Page 11 / 12 170018 P 3000 US 120V POWER-AMP Pos. Nr. Best. Nr. Ref. No. Part No. Bezeichnung Description S0201 327947 SCHALTELEMENT C42315-A1347- switch element on/off VR101 348486 WI-TRI 47.00 KOHM LIN pot trim 47k Ohm lin VR102 348675...
  • Page 31 All manuals and user guides at all-guides.com Page 12 / 12 170018 P 3000 US 120V POWER-AMP Pos. Nr. Best. Nr. Ref. No. Part No. Bezeichnung Description G02,1 330269 FL.STECKER 6.3/0.8 connector 6.3mm faston 00010 306838 SICHER-HALTER fuse holder 00015 306838 SICHER-HALTER fuse holder...
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P3000